Vcore - vertical micro coil in oddy/kayfun/Russian/Ithaca/ect.

[MattyTny]

I may be a little late to the party, but I'd like to share my experience with vertical coil mounts and wicking. I tried to take photos of my build and wick, I did leave out a few steps I took purely because I was excited to try out the new build.

I started with 28 gauge kanthal wrapped around a 16 gauge syringe needle about 11 times. I bent the leads and mounted the coil.

Once the coil was lifted and test fired I started to wick. This is where things got a little interesting and I wish I took more pictures. I started with a layer or ramie wick around the coil 1/2 times(each tail) and left tails to reach the deck. Then I took the very outside layer of kogendo cotton and just wrapped it around the coil one full wrap, no tails, to get a little volume on the wick. Then I took a layer of rayon and wrapped it opposite side of the ramie 1/2 times and left tails to reach the deck. I then trimmed the tails, rayon tail placed on the juice deck first, then ramie tail on top of that.

I don't have a picture, but I then took a very small layer, lets just say a bunch of fibers of rayon, and went vertically from the deck to the top wrap of the coil. This gave the the whole wick more volume on the tails, as you can see it's a little thin in the previous picture.

I always hear the debates about wicking material and which to use. I thought it would be interesting to see how all three agreed with each other. I placed ramie first because of it's heat resistant properties along with it's ability to wick well. The kogendo was a odd idea, but I wanted very thin layers, so I figured a small layer would expand and give me a nice density without having to wrap wicks around the coil a bunch. The rayon was placed over everything because I liked that it stays in place and is less firm than ramie, also for it's ability to wick. The ramie tails and rayon tails crossed each other, then a small piece of rayon going straight up to hold it all together. I wish I took a picture of the additional rayon strand, it made the whole wick look a lot better and more solid.

This thing works awesome. The airflow off the vertical mount is much smoother, probably because it's a bit less constricted compared to a horizontal mount. The vape also feels "velvety" or "silky", it's just smoother in general.

This was my first vertical build on the kayfun, a build I should have experimental with earlier. I'm looking forward to fine tuning the build and wicking in the future. It's a real shame it's on a MVP2, but it works.

critique will be appreciated

 

[JeremyR]

Welcome Matt!

The vertical is a great build.

Creative triple hybrid wick.

Rammie as a core, props if you got it working. if you get any dry hits fill the void around the coil with a fluff of rayon to keep a nice even wick contact.

Great build though...

 

[MattyTny]

Rammie as a core, props if you got it working.

I did some tweaking on the wick construction. I took ramie out of the equation. I placed ramie because of it's heat resistant ability, but it's a pain to work with. I want to get a better handling for ramie, I might just try a full wrap around the coil no tails in the future just for "insulation". My ramie did have a dark spot on it when I took it out. It didn't look scorched, but it was very dark. I think I may have went too light on the ramie wrap, since I wanted to make room for everything else.

The new wick I have is a combination of rayon and kohgendo. A rayon wrap around the coil, tails crossing opposite of long lead where it was threaded through and left to the deck. One wrap around the coil only with the outer layer of kohgendo cotton. Then vertical rayon strands going from the juice deck to the top of the wick. The whole wick is a bit smaller around the coil, which I feel will work efficiently.

I'm liking working with the vertical mount, I feel you have more options for experimenting. And the vape is just smoother, I love that silky velvety exhale.

 

[dice57]

Ahh, Matt me friend, looking good, yeah Ramie does take some finesse and understanding to get maximum wicking potential. Main thing on ramie is to pre-wet the wick with juice, and get all the fibers running straight and true. Find juicing the wick up before wicking the coil, gives one a better feel for the wick, and makes it much easier to work with. If it stiffens up, just add some more juice.

Now that you've gone single, you'll have to try the iV-twin I prefer the iV-t over a single vert on the Russian/Kayfun, because it so much easier to wick, is more forgiving, and vapes much smoother, and can be pushed at higher watts than a single vert. but hey, that's just me.

on a single vert, I always threaded the wick through the long leg, then wrapped back behind the long leg, with both wick tails wrapping completely around the coil, bend the wick tails up, secure the containment ring, then tuck the tails down into the juice decks.

With rayon, one want to use a bit more than less, since it tends to contract when seasoned and broke in. Not a big deal on verts, but with through the coil wicks, can be an area of concern.

 

[MattyTny]

on a single vert, I always threaded the wick through the long leg, then wrapped back behind the long leg, with both wick tails wrapping completely around the coil, bend the wick tails up, secure the containment ring, then tuck the tails down into the juice decks.

I'll have to try this on the next wick, I've been going through the long leg then crossing the tails, but you're method seems more functional.

I'm really loving the vertical build, the air seems to flow smoother going through the coil as it should. Re-wicking isn't complicated, just takes a few tries to nail down the density. Like you said, it's much more forgiving going around the coil than through it. So far I've had good luck with the kohgendo and rayon. The two are easy to work with, but I'm favoring the rayon, partially because I have enough to last me many years (as everyone else does lol) and the strands are much more uniform. I haven't gotten a dry hit on either, probably because the power limit I have. I'm going to upgrade soon after the holidays, I want to see what's coming out that will fit my budget.

My ramie (another lifetime supply) wicking needs a little bit of work. I do find that it stiffens up on me, but crossing the tails opposite of the long leg probably lends a hand to this. The outer tail doesn't want to stick even when juiced. On my next wick I want to try your method of threading through the long leg and wrapping back behind the leg, I think this will help my wick stay in place. I got it to stay in place on in the picture since I wrapped kohgendo around the coil portion and rayon on top of that, but I want to give all ramie a shot. Since the post I've used less material with good results. I still want to try a multiple wick, but I want to test each on it's own first. I've done the kogenho, rayon, and now ramie is due for a test.

I'm want to try the iV-twin soon, I'm going to get some 27 gauge kanthal so I can have a dual series coil each with a decent amount of wraps without going too high in resistance, which I think would happen with the 28 gauge. I don't want the dual series coil to be too small otherwise the wicking might be difficult. Really excited to try this, but I have to try the ramie single (successfully) before I attempt this.

Also, anyone ever try extension screws on their KF blocks? I saw this a bit ago and though it might be interesting. It basically allows you to have a screw post on top of your block. I think this could help the long leg issue since I could wrap the top leg around the post screw instead of bending it down to the block. I'm just not sure if it would impact how responsive the coil acts. It would be similar to securing a coil on some of the genesis atomizers (no experience with those btw).

Extension Screws for Kayfun Style Atomizer Set of Two | eBay

 

[Woofer]

Also, anyone ever try extension screws on their KF blocks? I saw this a bit ago and though it might be interesting. It basically allows you to have a screw post on top of your block. I think this could help the long leg issue since I could wrap the top leg around the post screw instead of bending it down to the block. I'm just not sure if it would impact how responsive the coil acts. It would be similar to securing a coil on some of the genesis atomizers (no experience with those btw).

Extension Screws for Kayfun Style Atomizer Set of Two | eBay

Interesting, sadly the ad is already gone. Big raspberry to ebay.

 

[dice57]

Matt, the reason Ramie stiffens up on you, is that the juice has been evenly distributed throughout the fiber cells and it's thirsting for more juice. Ramie, being a natural fiber, tends to rejuvenate the fiber cells, expanding the cellular walls and tends to utilize all the moisture evenly, so when it gets hard, all the cells are fighting for more juice. Just add more juice, work it in, and it becomes soft and pliable once again.

Don't feel bad about not getting it, took me like 2 months to figure Ramie out, and the purchase of the Rose2 by eden mods to get Ramie . Since then, it's been undoubtedly me wick of choice. Also has taught me more about wicking potential and fluid dynamics, that I had thought all but forgotten.

Heck, if dissatisfied with Ramie Top, would be more than happy to take it off your hands at fair market prices.


Vape long and Prosper.!!!!

 

[MattyTny]

I really like the way ramie fiber appears. All the strands are in line and uniform, when pulled taught it's even more obvious. I'm still having some issues with it, not sure if it's a density issue or a lack of saturation. Last night I played around with the ramie to see how it acts. I cut a bunch of fibers about three inches long. I then started saturating it down the length to see how the liquid interacts. This stuff moves liquid and it's pretty visible. I observed the liquid traveling up the fibers, I even saw some bubbles traveling up the wick. This stuff also hold more liquid than I originally thought. After watching it settle in for a while the length I cut was heavy and wet. I saw in some of your pictures that your wick was slightly flattened. So I gently compressed with wick with my fingers and starting cutting some fibers off along with wick.

After a bit of fiddling around I tried to place it around my coil. Your method of wrapping back around long leg is without doubt a better way to wick the single vert. I still came across the issue of getting that outer tail to stick. At this time the wick lost its "wetness" it had before. The wick wrap looked rather loose. Tried juicing it some more and I wasn't really satisfied with how it looked. I ditched it and did the same process with rayon and it was my best rayon wick yet. The preparation period along with the wrap back around the long leg is far superior compared to what I was doing before. The wicking process is easier, looks cleaner and performs flawlessly.

I may have failed ramie again, but my wicking in general is a bit better. I'm not at a complete loss though, I think the ramie length too thick, making it hungry for liquid. I'm going to keep trying. I think I should pick up another RBA soon to experiment on.

As always, thank you for help.

 

[dice57]

Hey Matt, sounds like progress to me. Like said, understanding ramie makes one better with all fibers.

Thing with Ramie, less is better than more. It does tend to firm up a tad, and with doing Verts, if it's to thin, just wrap around the rosie, a few more times. Through the coil one wants it almost too lose, squinch and fluff it up, tuck tails, juice it up good, and after a tank or two, it's at optimum. Ramie tends to firm up a tad, and if to constricted, it's like stepping on or pinching of a garden hose, and impedes fluid flow potential.

Don't feel bad, took me two months of stubborn, playing with it till it vapes right, and the purchase of the Rose2 rba tank system. Nice thing with both Ramie and Rayon, if your densities aren't right, it's easy to add or remove fiber, and try again.

Vape long and Prosper.!!!!